UK - call 111 and talk to a clerk for 45 mins and being told your ambulance will be 3-4 hours. If you can take uber or lift or taxi, it might save your life.

U.S - hospitals are full, we need to move your mom and dad to another in the area. Waiting in bed in the hallways for room. Several hours later, see doctors. More wait (especially NY and CA).

I want to say mostly 70% oncology or cardiology problems. Old cancer flare up onto stage 4 without going thru stage 1-3.